The purpose of this study was to investigate the effects of two water-based aerobic programs on cardiorespiratory and neuromuscular outcomes in older women. Forty-one women (60 to 75 years old) volunteered to participate in the study. Participants were randomized into a water-based continuous (CTG; n = 21; 63.9 ± 2.5 years) or an interval (ITG; n = 20; 64.8 ± 3.6 years) aerobic training group. Both training programs were performed for 12 weeks (45-min sessions twice a week), with exercise intensity based on rating of perceived exertion (Borg's RPE 6–20 Scale). Pre and post training assessments of cardiorespiratory and neuromuscular outcomes were performed. Data analyses were conducted using Generalized Estimating Equations and Bonferroni post-hoc test (α = 0.05). After the intervention, the CTG and the ITG displayed similar improvements in time to exhaustion (8% vs. 11%), peak oxygen uptake (9% vs. 7%), maximal dynamic knee extension strength (5% vs. 6%), dynamic muscular endurance of knee extensors (10% vs. 11%), maximal vastus lateralis electromyographic signal amplitude (13% vs. 35%), as well as an increase in muscle thickness (5% vs. 6%) and decrease in muscle echo intensity (−2% vs. −3%) of the quadriceps femoris. In conclusion, older women benefited from water-based exercise training prescribed based on participants' RPE, with both the interval and the continuous training programs resulting in similar increases in the cardiorespiratory and neuromuscular parameters.

本研究的目的是调查两种水基有氧运动对老年女性心肺和神经肌肉结果的影响。 41 名女性（60 至 75 岁）自愿参加这项研究。参与者被随机分为水基连续有氧训练组（CTG； n = 21；63.9 ± 2.5 年）或间歇有氧训练组（ITG； n = 20；64.8 ± 3.6 年）。两项训练计划均持续 12 周（每周两次，每次 45 分钟），运动强度基于感知的劳累程度（Borg 的 RPE 6-20 量表）。对心肺和神经肌肉结果进行训练前和训练后评估。使用广义估计方程和 Bonferroni事后检验 (α = 0.05) 进行数据分析。干预后，CTG 和 ITG 在力竭时间（8% vs. 11%）、峰值摄氧量（9% vs. 7%）、最大动态膝关节伸展力量（5% vs. 6%）方面表现出类似的改善、膝伸肌的动态肌肉耐力（10% vs. 11%）、最大股外侧肌电图信号幅度（13% vs. 35%），以及肌肉厚度的增加（5% vs. 6%）和肌肉厚度的减少股四头肌的肌肉回声强度（-2% 与-3%）。总之，老年女性受益于根据参与者的 RPE 规定的水基运动训练，间歇训练和连续训练计划都会导致心肺和神经肌肉参数的类似增加。